Alteogen ((주)알테오젠) is a biopharmaceutical company that develops therapeutic proteins, antibody-drug conjugates (ADC), and monoclonal antibody biosimilars. It provides NexP fusion technology that supports the production of Human Growth Hormone (HGH), long-acting exenatide for diabetes, and long-acting Factor VIIa for haemophilia. Additionally, Alteogen provides NexMab ADC technology for targeted cancer therapy.